设置单元格的样式
<DataGrid.Columns>
<DataGridTextColumn Header="检测项目" Binding="{Binding ItemName}" Width="*" />
<DataGridTemplateColumn Header="详细" Width="80" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<Button VerticalAlignment="Stretch" Style="{StaticResource NewDialogBtStyleG}" Height="{Binding ElementName=GridTest,Path=RowHeight}" Click="ItemClick" ></Button>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
效果: